CN219420741U - Automatic induction device and induction button capable of preventing false triggering - Google Patents
Automatic induction device and induction button capable of preventing false triggering Download PDFInfo
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- CN219420741U CN219420741U CN202320767318.7U CN202320767318U CN219420741U CN 219420741 U CN219420741 U CN 219420741U CN 202320767318 U CN202320767318 U CN 202320767318U CN 219420741 U CN219420741 U CN 219420741U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses an automatic sensing device capable of preventing false triggering and a sensing key, wherein the automatic sensing device comprises a light receiving and transmitting assembly and a control assembly, and the light receiving and transmitting assembly comprises a first light emitter, a second light emitter and a light receiver; the distance between the first light emitter and the light receiver is smaller than that between the second light emitter and the light receiver; the control component comprises a first control end, a second control end, a voltage feedback end and an output end; the first control end is connected with the first light emitter; the second control end is connected with the second light emitter; the voltage feedback end is connected with the light receiver; the control component controls the first light emitter and the second light emitter to emit light orderly through the first control end and the second control end, and outputs a control signal at the output end according to the first voltage feedback signal and the second voltage feedback signal correspondingly received by the voltage feedback end. The utility model can judge the corresponding close-range physical induction and reflective clothing induction, and avoid false triggering caused by reflective clothing, water drops and the like.
Description
Technical Field
The utility model relates to the field of photoinduction detection, in particular to an automatic induction device capable of preventing false triggering and an induction key.
Background
Along with the development of society and the improvement of people's life demand, the popularity based on light induction device is higher and higher, for example elevator can set up non-contact response button, and this response button can be according to sensing the finger in the limited scope and open automatically, has saved corresponding loaded down with trivial details operation, makes people's life more convenient.
However, the conventional light sensing device may sometimes trigger the control signal by mistake according to the reflected light signal of the reflective clothing, the water drops, etc., for example, the reflective clothing is worn to cause the sensing button of the elevator to trigger the opening signal by mistake, thereby reducing the user experience.
Disclosure of Invention
In view of the above problems, the present utility model aims to provide an automatic sensing device and a sensing button capable of preventing false triggering, which can be used for avoiding false triggering caused by reflective clothes, water drops, etc.
The utility model provides an automatic sensing device capable of preventing false triggering, which comprises a light receiving and transmitting assembly and a control assembly; the light receiving and transmitting assembly comprises a first light emitter, a second light emitter and a light receiver; the distance between the first light emitter and the light receiver is smaller than the distance between the second light emitter and the light receiver; the control component comprises a first control end, a second control end, a voltage feedback end and an output end; the first control end is connected with the first light emitter; the second control end is connected with the second light emitter; the voltage feedback end is connected with the light receiver; the control component controls the first light emitter and the second light emitter to emit light orderly through the first control end and the second control end, and outputs a control signal at the output end according to the first voltage feedback signal and the second voltage feedback signal correspondingly received by the voltage feedback end.
Optionally, the first light emitter includes a first light emitting unit, the second light emitter includes a second light emitting unit, and the light receiver includes a light receiving unit; the first end of the first light-emitting unit is connected with the power supply end, and the second end of the first light-emitting unit is connected with the first control end; the first end of the second light-emitting unit is connected with the power supply end, and the second end of the second light-emitting unit is connected with the second control end; the first end of the light receiving unit is connected with the power supply end, and the second end of the light receiving unit is connected with the voltage feedback end.
Optionally, the automatic sensing device for preventing false triggering further includes a first resistor; the first resistor is arranged between the second end of the first light-emitting unit and the first control end, or is built in the control assembly and connected with the first control end.
Optionally, the automatic sensing device for preventing false triggering further includes a second resistor; the second resistor is arranged between the second end of the second light-emitting unit and the second control end, or is built in the control assembly and connected with the second control end.
Optionally, the automatic sensing device for preventing false triggering further includes a third resistor; the third resistor is arranged outside the control assembly, the first end of the third resistor is connected with the second end of the light receiving unit, the second end of the third resistor is grounded, or the third resistor is arranged inside the control assembly, the first end of the third resistor is connected with the voltage feedback end, and the second end of the third resistor is grounded.
Optionally, the first light emitting unit, the second light emitting unit and the light receiving unit are on the same straight line.
Optionally, the first light emitting unit and the second light emitting unit are located on the same side or different sides of the light receiving unit.
Optionally, the first optical transmitter and the optical receiver form a first transmit receive group.
Optionally, the automatic sensing device for preventing false triggering further comprises a housing; the light receiving and transmitting assembly is arranged in the shell; the shell comprises a light transmission part, wherein the light transmission part is used for light emission of the first light emitter, the second light emitter and light reception of the light receiver.
Optionally, the light-transmitting portion includes a first light-transmitting portion and a second light-transmitting portion, the first light emitter and the light receiver collectively correspond to a position of the first light-transmitting portion, and the second light emitter corresponds to a position of the second light-transmitting portion.
The utility model also provides an induction key, which comprises the automatic induction device for preventing false triggering.
According to the automatic sensing device and the sensing key capable of preventing false triggering, the distance between the first light emitter and the light receiver is smaller than that between the second light emitter and the light receiver, the control component controls the first light emitter and the second light emitter to emit light orderly through the first control end and the second control end, judges corresponding close-range entity sensing and reflective clothing sensing according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback end correspondingly, and outputs corresponding control signals at the output end, so that when the reflective clothing, the water drops and the like are judged, the control signals for starting are not output, and false triggering caused by the reflective clothing, the water drops and the like is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of an auto-induction device according to an embodiment of the present utility model;
FIG. 2 is a schematic circuit diagram of an auto-induction device according to another embodiment of the present utility model;
FIG. 3 is a schematic view illustrating a light path of an auto-sensing device according to an embodiment of the utility model;
FIG. 4 is a schematic view of a light path of an auto-sensing device according to another embodiment of the present utility model.
Detailed Description
The foregoing and other features, aspects, and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments, which proceeds with reference to the accompanying drawings. While the utility model may be susceptible to further details of technical means and effects for achieving the desired purpose, there is shown in the drawings a form a further part hereof, and in which is shown by way of illustration and not by way of limitation, certain well-known elements of the utility model. Like elements are denoted by like reference numerals throughout the various figures. For purposes of clarity, the various elements in the drawings are not necessarily drawn to scale.
Fig. 1 is a schematic circuit diagram of an auto-induction device according to an embodiment of the utility model. As shown in fig. 1, the present embodiment provides an auto-sensing device for preventing false triggering, which includes a light transceiver 100 and a control unit 200. The light transceiving assembly 100 includes a first light emitter 110, a second light emitter 120, and a light receiver 130. The distance of the first optical transmitter 110 from the optical receiver 130 is smaller than the distance of the second optical transmitter 120 from the optical receiver 130. The control assembly 200 includes a first control terminal 201, a second control terminal 203, a voltage feedback terminal 202, and an output terminal 204. The first control terminal 201 is connected to the first light emitter 110. The second control terminal 203 is connected to the second light emitter 120. The voltage feedback terminal 202 is connected to the optical receiver 130. The control component 200 controls the first light emitter 110 and the second light emitter 120 to emit light sequentially through the first control terminal 201 and the second control terminal 203, and outputs a control signal at the output terminal 204 according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback terminal 202 respectively.
In an embodiment, as shown in fig. 1, the first light emitter 110 includes a first light emitting unit 111, the second light emitter 120 includes a second light emitting unit 121, and the light receiver 130 includes a light receiving unit 131; a first end of the first light emitting unit 111 is connected to the power supply terminal VCC, and a second end of the first light emitting unit 111 is connected to the first control terminal 201; a first end of the second light emitting unit 121 is connected to the power supply terminal VCC, and a second end of the second light emitting unit 121 is connected to the second control terminal 203; a first terminal of the light receiving unit 131 is connected to the power supply terminal VCC, and a second terminal of the light receiving unit 131 is connected to the voltage feedback terminal 202.
In one embodiment, the false triggering prevention auto-induction device further includes a first resistor 112; in the embodiment shown in fig. 1, the first resistor 112 may be disposed between the second end of the first light emitting unit 111 and the first control end 201; in the embodiment shown in fig. 2, the first resistor 112 may be built into the control assembly 200 and connected to the first control terminal 201.
In an embodiment, the automatic sensing device for preventing false triggering further includes a second resistor 122; in the embodiment shown in fig. 1, the second resistor 122 may be disposed between the second terminal of the second light emitting unit 121 and the second control terminal 203; in the embodiment shown in fig. 2, the second resistor 122 may be built into the control assembly 200 and connected to the second control terminal 203.
In an embodiment, the automatic sensing device for preventing false triggering further includes a third resistor 132; in the embodiment shown in fig. 1, the third resistor 132 may be external to the control component 200, where a first end of the third resistor 132 is connected to a second end of the light receiving unit 131, and a second end of the third resistor 132 is grounded; in the embodiment shown in fig. 2, the third resistor 132 may be built into the control assembly 200, with a first terminal of the third resistor 132 connected to the voltage feedback terminal 202 and a second terminal of the third resistor 132 grounded. Thus, the currents generated by the light receiving unit 131 according to the sequentially received reflected light all flow through the third resistor 132, so that the first end of the third resistor 132 generates the corresponding first voltage feedback signal or the second voltage feedback signal, and the control component 200 is connected to the light receiving unit 131 through the voltage feedback end 202, and accordingly obtains the first voltage feedback signal or the second voltage feedback signal on the first end of the third resistor 132 connected to the light receiving unit 131.
Specifically, in the false triggering prevention auto-induction device of the present embodiment, the control component 200 controls the first light emitter 110 and the second light emitter 120 to emit light sequentially through the first control end 201 and the second control end 203, for example, the control component 200 controls the first light emitter 110 to emit light through the first control end 201 and then controls the second light emitter 120 to emit light through the second control end 203. When the control component 200 controls the first light emitter 110 to emit light through the first control terminal 201, the first control terminal 201 may be set to a low level, or the first control terminal 201 may be grounded through a conductive switching element, so that a voltage difference is generated between two ends of the first light emitting unit 111, and the first light emitting unit 111, such as an infrared diode, emits light correspondingly, and the control component 200 may obtain a first voltage feedback signal through the voltage feedback terminal 202. When the control component 200 controls the second light emitter 120 to emit light through the second control terminal 203, the second control terminal 203 may be set to a low level, or the second control terminal 203 may be grounded through a conductive switching element, so that a voltage difference is generated between two ends of the second light emitting unit 121, such as an infrared diode, emits light correspondingly, and the control component 200 may obtain a second voltage feedback signal through the voltage feedback terminal 202. Then, the control component 200 performs the judgment of the corresponding close-range physical induction and reflective clothing induction according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback end 202, and outputs the corresponding control signal at the output end 204, so that when the reflective clothing, the water drops and the like are judged, the control signal for starting is not output, and false triggering caused by the reflective clothing, the water drops and the like is avoided.
FIG. 3 is a schematic view illustrating a light path of an auto-sensing device according to an embodiment of the utility model. As shown in fig. 3, when the auto-sensing device senses that the sensed reflector is not reflective clothing, water drops, etc., the light emitted by the first light emitter 110, such as infrared light, can be reflected to the light receiver 130 when encountering the reflector, so that the light receiver 130 performs photoelectric conversion, the voltage of the first voltage feedback signal received by the control assembly 200 is larger, and the light emitted by the second light emitter 120 can not be reflected to the light receiver 130 when encountering the reflector, and the voltage of the second voltage feedback signal received by the control assembly 200 is smaller and is close to zero. If the sensed reflector is a reflective garment, a water droplet, or the like, the light emitted by the first light emitter 110, such as infrared light, will be reflected to the light receiver 130 when encountering the reflector, so that the light receiver 130 performs photoelectric conversion, the voltage of the first voltage feedback signal received by the control component 200 is larger, and the light emitted by the second light emitter 120 will also be reflected to the light receiver 130 when encountering the reflector, so that the voltage of the second voltage feedback signal received by the control component 200 is larger. Accordingly, the control component 200 can perform the judgment of the corresponding close-range physical induction and reflective clothing induction according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback end 202, and output the corresponding control signal at the output end 204, so that when the reflective clothing, the water drops and the like are judged, the control signal for starting is not output, and false triggering caused by the reflective clothing, the water drops and the like is avoided.
In an embodiment, the control component 200 outputs a corresponding control signal, such as an on control signal, at the output end 204 when the first voltage feedback signal is at a high level and the second voltage feedback signal is at a low level, that is, it is determined that the control component 200 senses a reflector, and the reflector is not reflective clothing, water drops, or the like. In an embodiment, the control component 200 may perform voltage comparison through a voltage comparator, and output a corresponding control signal, such as an on control signal, at the output terminal 204 when the first voltage feedback signal is greater than a first preset voltage and the second voltage feedback signal is less than a second preset voltage.
In an embodiment, when the first voltage feedback signal is at a high level and the second voltage feedback signal is at a high level, the control component 200 outputs a corresponding control signal, such as a turned-off control signal, at the output end 204, so as to avoid false triggering caused by reflective clothing, water drops, etc., that is, it is determined that the control component 200 senses the reflector, and the reflector is reflective clothing, water drops, etc. In one embodiment, the control component 200 may perform voltage comparison through a voltage comparator, and output a corresponding control signal, such as a turned-off control signal, at the output terminal 204 when the first voltage feedback signal is greater than the first preset voltage and the second voltage feedback signal is greater than the third preset voltage.
In one embodiment, when the first voltage feedback signal is at a low level, the control component 200 outputs a corresponding control signal, such as a turned-off control signal, at the output end 204, so as to avoid false triggering caused by reflective clothing, water drops, etc., i.e. determine that there is no reflector in the close range. In one embodiment, the control module 200 may perform voltage comparison through a voltage comparator, and output a corresponding control signal, such as an off control signal, at the output terminal 204 when the first voltage feedback signal is less than the fourth preset voltage.
In one embodiment, as shown in fig. 3, the first light emitting unit 111, the second light emitting unit 121, and the light receiving unit 131 are disposed on a circuit board, and may be connected to the control assembly 200 disposed on the circuit board through the circuit board.
In an embodiment, the first light emitting unit 111 and the second light emitting unit 121 are located at the same side or different sides of the light receiving unit 131. In an embodiment, the first light emitting unit 111, the second light emitting unit 121, and the light receiving unit 131 may or may not be disposed on a straight line. As shown in fig. 3, it is exemplified that the first light emitting unit 111, the second light emitting unit 121, and the light receiving unit 131 may all be disposed on a circuit board, and the first light emitting unit 111, the second light emitting unit 121 are located on the same side of the light receiving unit 131; the first light emitting unit 111 and the second light emitting unit 121 may be on the same line as the light receiving unit 131, i.e., on the same side of the light receiving unit 131 and on the same line passing through the light receiving unit 131, or the first light emitting unit 111 and the second light emitting unit 121 may not be on the same line as the light receiving unit 131, i.e., on the same side of the light receiving unit 131 only and not on the same line passing through the light receiving unit 131.
It should be noted that, in the embodiment of fig. 3, the first light emitting unit 111 and the second light emitting unit 121 are located on the right side of the light receiving unit 131, but the specific positions of the first light emitting unit 111, the second light emitting unit 121 and the light receiving unit 131 are not limited thereto, for example, the first light emitting unit 111 and the second light emitting unit 121 may be located on the left side of the light receiving unit 131, the first light emitting unit 111 and the second light emitting unit 121 may be located on different sides of the light receiving unit 131, and the like.
FIG. 4 is a schematic view of a light path of an auto-sensing device according to another embodiment of the present utility model. In one embodiment, as shown in fig. 4, the first optical transmitter 110 and the optical receiver 130 form a first transmitting-receiving group, and accordingly, the second optical transmitter 120 may be used as a second transmitting group. When the auto-sensing device is sensing, if the sensed reflector is not reflective clothing, water drops, etc., the light emitted by the first transmitting and receiving set, for example, infrared light, can be reflected to the first transmitting and receiving set when encountering the reflector, so that the first transmitting and receiving set performs photoelectric conversion, the voltage of the first voltage feedback signal received by the control assembly 200 is larger, and the light emitted by the second transmitting set cannot be reflected to the first transmitting and receiving set when encountering the reflector, and the voltage of the second voltage feedback signal received by the control assembly 200 is smaller and is close to zero. If the sensed reflector is reflective clothing, water drops, etc., the light emitted by the first transmitting and receiving set, such as infrared light, will be reflected to the first transmitting and receiving set when encountering the reflector, so that the first transmitting and receiving set performs photoelectric conversion, the voltage of the first voltage feedback signal received by the control assembly 200 is larger, and the light emitted by the second transmitting set will also be reflected to the first transmitting and receiving set when encountering the reflector, so that the voltage of the second voltage feedback signal received by the control assembly 200 is larger. Accordingly, the control component 200 can perform the judgment of the corresponding close-range physical induction and reflective clothing induction according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback end 202, and output the corresponding control signal at the output end 204, so that when the reflective clothing, the water drops and the like are judged, the control signal for starting is not output, and false triggering caused by the reflective clothing, the water drops and the like is avoided.
In one embodiment, the auto-induction device further comprises a housing, and the light transceiver assembly 100 is disposed in the housing; the housing includes a light transmitting portion for light emission of the first and second light emitters 110 and 120 and light reception of the light receiver 130.
In an embodiment, the light transmitting portion includes a first light transmitting portion and a second light transmitting portion, the first light emitter 110 and the light receiver 130 collectively correspond to a position of the first light transmitting portion, and the second light emitter 120 corresponds to a position of the second light transmitting portion.
Based on the same inventive concept, the embodiment of the utility model also provides an induction key, such as an induction key for an elevator, which comprises the false triggering prevention automatic induction device provided by the embodiment of the utility model, and the implementation of the induction key can be referred to the embodiment of the false triggering prevention automatic induction device, and the repetition is omitted.
According to the automatic sensing device and the sensing key capable of preventing false triggering, the distance between the first light emitter and the light receiver is smaller than that between the second light emitter and the light receiver, the control component controls the first light emitter and the second light emitter to emit light orderly through the first control end and the second control end, judges corresponding close-range entity sensing and reflective clothing sensing according to the first voltage feedback signal and the second voltage feedback signal received by the voltage feedback end correspondingly, and outputs corresponding control signals at the output end, so that when the reflective clothing, the water drops and the like are judged, the control signals for starting are not output, and false triggering caused by the reflective clothing, the water drops and the like is avoided.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.
Claims (10)
1. An automatic sensing device for preventing false triggering, comprising:
a light transceiving component (100), the light transceiving component (100) comprising a first light emitter (110), a second light emitter (120) and a light receiver (130); -the distance of the first optical transmitter (110) from the optical receiver (130) is smaller than the distance of the second optical transmitter (120) from the optical receiver (130);
a control assembly (200), the control assembly (200) comprising a first control terminal (201), a second control terminal (203), a voltage feedback terminal (202) and an output terminal (204); the first control end (201) is connected with the first light emitter (110); the second control end (203) is connected with the second light emitter (120); the voltage feedback end (202) is connected with the optical receiver (130); the control component (200) controls the first light emitter (110) and the second light emitter (120) to emit light orderly through the first control end (201) and the second control end (203), and outputs a control signal at the output end (204) according to the first voltage feedback signal and the second voltage feedback signal which are correspondingly received by the voltage feedback end (202).
2. The false triggering prevention auto-induction device according to claim 1, characterized in that the first light emitter (110) comprises a first light emitting unit (111), the second light emitter (120) comprises a second light emitting unit (121), and the light receiver (130) comprises a light receiving unit (131);
a first end of the first light-emitting unit (111) is connected with a power supply end, and a second end of the first light-emitting unit (111) is connected with the first control end (201); the first end of the second light-emitting unit (121) is connected with the power supply end, and the second end of the second light-emitting unit (121) is connected with the second control end (203); the first end of the light receiving unit (131) is connected with the power supply end, and the second end of the light receiving unit (131) is connected with the voltage feedback end (202).
3. The false triggering prevention auto-induction device as recited in claim 2, further comprising a first resistor (112); the first resistor (112) is arranged between the second end of the first light-emitting unit (111) and the first control end (201), or the first resistor (112) is built in the control assembly (200) and is connected with the first control end (201).
4. The false triggering prevention auto-induction device as recited in claim 2, further comprising a second resistor (122); the second resistor (122) is arranged between the second end of the second light-emitting unit (121) and the second control end (203), or the second resistor (122) is built in the control assembly (200) and is connected with the second control end (203).
5. The false triggering prevention auto-induction device as recited in claim 2, further comprising a third resistor (132); the third resistor (132) is arranged outside the control assembly (200), a first end of the third resistor (132) is connected with a second end of the light receiving unit (131), a second end of the third resistor (132) is grounded, or the third resistor (132) is arranged inside the control assembly (200), a first end of the third resistor (132) is connected with the voltage feedback end (202), and a second end of the third resistor (132) is grounded.
6. The false triggering prevention auto-induction device according to claim 2, characterized in that the first light emitting unit (111) and the second light emitting unit (121) are located on the same side or on different sides of the light receiving unit (131).
7. The false triggering prevention automatic sensing device as defined in claim 1, wherein the first optical transmitter (110) and the optical receiver (130) form a first transmit receive group.
8. The false triggering prevention automatic sensing apparatus as defined in claim 1 further comprising a housing; the light receiving and transmitting component (100) is arranged in the shell; wherein the housing comprises a light transmitting portion for light emission of the first light emitter (110), the second light emitter (120) and light reception of the light receiver (130).
9. The false triggering prevention automatic sensing device as recited in claim 8, wherein the light transmission portion includes a first light transmission portion and a second light transmission portion, the first light emitter (110) and the light receiver (130) collectively correspond to a position of the first light transmission portion, and the second light emitter (120) corresponds to a position of the second light transmission portion.
10. An induction key comprising an anti-false automatic induction device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320767318.7U CN219420741U (en) | 2023-03-28 | 2023-03-28 | Automatic induction device and induction button capable of preventing false triggering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320767318.7U CN219420741U (en) | 2023-03-28 | 2023-03-28 | Automatic induction device and induction button capable of preventing false triggering |
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| Publication Number | Publication Date |
|---|---|
| CN219420741U true CN219420741U (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320767318.7U Active CN219420741U (en) | 2023-03-28 | 2023-03-28 | Automatic induction device and induction button capable of preventing false triggering |
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| Country | Link |
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| CN (1) | CN219420741U (en) |
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- 2023-03-28 CN CN202320767318.7U patent/CN219420741U/en active Active
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